09-05-2019 01:51 PM
The SSD of my X1C6 is surprisingly slow. Sequentially reading the first gigabyte of the device, right after boot, I get:
# dd if=/dev/nvme0n1 bs=1M count=1024 of=/dev/null 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 23.3171 s, 46.0 MB/s
46 MB/s. I'm so sad.
I also think it is getting worse as the days passes.
Fstrim is running once a week, as by Ubuntu's default. I ran fstrim manually (and then rebooted after that), before the command above.
Apart this slowness, everything works fine.
Any ideas about what's going on? Suggestions?
09-06-2019 02:19 PM
I'd like to leave a note, maybe it could be useful to some other users.
I dug a little bit into my problem and I'm pretty sure it is related to the LVM installation I'm running. I still don't know if LVM doesn't pass the trim commands to the underlying physical device or something else, but I can say that this isn't a Thinkpad specific issue.